Covered dish



(No'Model.)

E. A.` PARKER.

COVERED DISH.

Patented Apr.4,188z.

WI JSSES NV PETERS. Pholmllhognphnr, Walhingtnn. D. C.

UNITED STATES PATENT OFFICE.

EDMUNI) A. PARKER, OF MERIDEN, CONNECTICUT.

COVERED DISH.

SPECIFICATIO forming part of Letters Patent No. 256,036, dated April 4, 1882.

` Application filed February 3, 1882. (No model.)

To all whom it may concern Beit known that I, EDMUND A. PARKER, a citizen of the United States, residing at Meriden, iu the county of New Haven and State of Connecticut, have invented new and useful Improvements in Covered Dishes, of whichthe following is a specification.

My invention relates to that class of covered dishes made the subject-matter of a pending application for Letters Patent tiled by me on the 18th da)v of January, 1882, and in which the cover is automatically lifted and held in an elevated position when a spring-latch or locking device is released.

In the application above referred to the cover is guided in the vertical movement by the parallel sides of a metallic frame or arbor in the upper or bridge portion of which is located a coil-spring having a hub surrounding the square end of a quick-screw shaft, the rotation of which tightens or loosens the spring while the threads or channels of the shaft rotating within a Babbitt-metal bearing or nut in the dome of the dish-cover causes the cover to be raised or lowered accordingly as the shaft is turned in one direction or the other, as is fully explained in said application, and to which I here refer for a complete understanding ot' said operation.

My present invention, while relating to that kind of device, consists in the particular details of construction hereinafter described and specifically claimed.

In order that those skilled may fully understand my said invention, l will proceed to describe the construction and operation of the same, referring by letters to the accompanying drawings, in which- Figurel is a central vertical section of a butter-dish embodying the features of my invention; ,Fig.2, a detail section taken at the line a* x of Fig. 1, and Fig. 3 is a similar section to Fig. l of a modification of my invention.

Similar letters indicate like parts in the several figures.

A represents the base or bowl of the dish, flanged outwardly at a to receive the base or lower edge of the dome or cover B, and extended inwardly to form a receptacle, C, for a butter pan or plate. From the upper edge posite sides, meeting centrally over the bowl to forln a support for a vertical tube, E, at the base or lower end of which is fixed a spring-3 case, b, within which is arranged acoil-spring, c, the inner end terminating in a'hub, d, having a central square hole.

Through the square hole in the hub d, and also through the top and bottom of the case b, passes the lower squared end ofa worm-shaft, F, adapted to freely rotate. The rotationot' the shaft F is produced by the downward movement ot' the hollow handle or tube Gr secured to the apex of the cover B. This tube is provided at its lower end with wings c c, (see Fig. 2,) extending inwardly into the groove or channel of the worm-shaft, so that the vertical movement of the tube or handle and the cover will cause the shalt F to be rotated and the spring c to be tightened or wound up by the time the lower edge of the cover B has reached its seat inside the iiange a of the bowl A. At this moment a spring latch or bolt, H, shoots into a suitable hole or recess near the top end of the shaft F and locks the same against rotation. When the latch or bolt H is withdrawn the power ot' the spring cis exerted and the shaft F rotated in a reverse direction, andthe wings e c are forced to travel upwardly, and thus carry the cover and handle G up to expose the butter-pan in the receptacle C. n

It will be observed that the wings c e, extending inwardly from the outer tube, G, pass through vertical guide-slots j' f on opposite sides of the inner tube, E, and by this arrangement the outer tube is forced to move vertically.

At Fig. 3 l have shown a modification 0f my invention, which consists in making the cover B stationary by securing it at g g to the frame I and adapting the bowl A to vertical movement by guide-arms It It, embracing the frame I.

The bowl is provided with a bail, J, at the apex of which a springand case similar to those already described are secured, and a wormshaft, F, with the thread or groove the reverse of that shown at Fig. 1, is connected with the hub of the spring. The top of the cover B is provided with a vertical tube or handle, Gr, having at its base inwardly-projecting wings ot the receptacle C a frame, D, rises from op- IOO - closed position.

B, the latter adapted to be automatically lifted e e, similar to those shown at Figs. l and 2. The tube G also has longitudinal slots or indenturesff, through or into which project guide teats or projections t' t'v from opposite sides of a central passage or opening in the top of the frame I.

Instead ot' the double wings or projections described l may, of course, employ only one in each case, though I prefer to use two. A lock or latch Il, similar to the one already described,is provided and adapted to project into a seat in the shaft F to lock the coverB in its It will be observed that in both of the constructions described and shown'the cover-support consists ot' a frame or bail risingfrom the bowl and underneath the cover, said bail or the connections thereof passing centrally through the cover and serving the function of a handle, and as this is, so far as I am aware, entirely novel with me, and may be employed in the manufacture ot' dishes differing in other respects from the other described features of construction, I wish it to be understood that my invention fully contemplates the broad feature referred to.

What I claim in this ease, and desire to secure by Letters Patent, is

1.' In combination with thebawlAand cover orto be positively locked in a closed position,

a'tubular handle, Gr, the vertical movementof.

which causes the interior worm-shaft to be rotated, and which also serves as a means for carrying the bowl, substantially as described.

2. The bowl A, provided with a seat for a cover, and having a bail, J, provided at its top with a tube, E, having slotsff, spring` c, and worm-shaft F, in combination with the cover B, terminating at its top in a tubular handle, G, provided with inwardly-projecting;` wings e e and a suitable lock or latch, H, substantially as and for the purpose set forth.

3. In combination withy the bowlA,adapted to vertical movement upon the frame I, and provided with a bail, J, spring c, and wormshaft F, the cover B, rigidly secured to the frame I, and provided with the tubular handle G, slotted or indented at f, and having wings e @and the guide-feats i on the frame, all substantially as and for the purpose set forth.

4. The b owl A, provided with a frame or bail, D, arranged underneath the cover B, the latter adapted to the passage centrally through the same of the bail I) or an extension thereof, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

EDMUND A. PARKER.

Witnesses:

JOHN J. MCGURK, J. B. BEACH. 

